Cleanup Boomerang JS debug lines

[tsvetan-basic-rum]

I am still seeing some info lines in the browser's console:

(1752408286891) {k4guac9j}: boomerang.rt: [debug] Current session meta:
domain=magento.test
	ID=a4623b5f-2b63-47b0-a787-d71f491d8ac8
	start=1752404896990
	length=10
	enabled=true

We must use a production Boomerang build.